BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 20 42.6%
2 United States 9 19.1%
3 Hong Kong 3 6.4%
4 Netherlands 3 6.4%
5 Taiwan 3 6.4%
6 Germany 2 4.3%
7 Australia 2 4.3%
8 Singapore 2 4.3%
9 Algeria 1 2.1%
10 United Kingdom 1 2.1%
11 Saudi Arabia 1 2.1%